Update CONTRIBUTING.md with Devicon line logos (#941)

* change line logos from apache to devicon

* Added link to line logo explanation

* change title to devicon-line.svg

Co-authored-by: David Leal <halfpacho@gmail.com>

* change title to devicon-line-wordmark.svg

Co-authored-by: David Leal <halfpacho@gmail.com>

* undo commit 7f7b7da

* remove link to script-tutorials.com

Co-authored-by: David Leal <halfpacho@gmail.com>
Co-authored-by: Clemens Bastian <8781699+amacado@users.noreply.github.com>

CONTRIBUTING.md

@@ -106,8 +106,8 @@ First of all, thanks for taking the time to contribute! This project can only gr
       </td>
       <td style='width: 33%'>
           <p><b>line</b>: a one-color, line version of the original logo. Note that the icon version will be stripped of all colors so you don't have to strip beforehand. </p>      
-          <img src='https://raw.githubusercontent.com/devicons/devicon/master/icons/apache/apache-line.svg' height='100px' width='100px' />
-          <h4>apache-line.svg</h4>
+          <img src='https://raw.githubusercontent.com/devicons/devicon/master/icons/devicon/devicon-line.svg' height='100px' width='100px' />
+          <h4>devicon-line.svg</h4>
       </td>
     </tr>
     <tr>
@@ -123,8 +123,8 @@ First of all, thanks for taking the time to contribute! This project can only gr
       </td>
       <td style='width: 33%'>
           <p><b>line-wordmark</b>: similar to the above but must contain the name of the technology. Note that the icon version will be stripped of all colors so you don't have to strip beforehand.</p>      
-          <img src='https://raw.githubusercontent.com/devicons/devicon/master/icons/apache/apache-line-wordmark.svg' height='100px' width='100px' />
-          <h4>apache-line-wordmark.svg</h4>
+          <img src='https://raw.githubusercontent.com/devicons/devicon/master/icons/devicon/devicon-line-wordmark.svg' height='100px' width='100px' />
+          <h4>devicon-line-wordmark.svg</h4>
       </td>
     </tr>
   </table>